I’m trying to use an event emitter with React useEffect and useState, but it always gets the initial state instead of the updated state. It works if I call the event handler directly, even with a setTimeout.
I am trying to customize the Split node in Node-Red in a way to send the next message only when the first arrives to the Join node; as I am doing some processing in between, and would like to process each msg separately before joining them.
In this old answer is there the below function based event emitter.
I am getting following warning:
How can I debug my application which throw this error:
I see this pattern in quite a few Node.js libraries:
Is there something that the EventEmitter.call(this) does that is required?
2 streams:
I’d like to have something like this work:
Is there a way to access to the class context in the event listener method with possibility to remove the listener?
